Seamless Pipe A53 Grade C

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Seamless Pipe A53 Grade C

Tình trạng hàng : Stock warehouse in Viet Nam
Nguồn gốc xuất xứ : China/ Japan/ Korea/ Singapore, G7, Thailand
Bảo hành : 12 months
Địa điểm giao hàng : At the buyer's ware house
Thanh toán : TTA/LC
Ứng dụng sản phẩm : Gas LPG, Fire protection, Water supply, Oil and Gas
Lượt xem : 63

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Seamless Pipe A53 Grade C
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Seamless Pipe A53 Grade C	Seamless Pipe SA53 Grade C	Seamless Pipe A53 Gr.C	Seamless Pipe SA53 Gr.C
SMLS Pipe A53 Grade C	SMLS Pipe SA53 Gr.C	SMLS Pipe A53 Gr.C	SMLS Pipe SA53 Grade C
Seamless Pipe A53 Grade C, Alack paint		Seamless Pipe SA53 Grade C, Alack paint
SMLS Pipe A53 Grade C, Alack paint		SMLS Pipe SA53 Gr.C , Alack paint
Seamless Pipe A53 Gr.C, Alack paint		Seamless Pipe SA53 Gr.C, Alack paint
SMLS Pipe A53 Gr.C, Alack paint		SMLS Pipe SA53 Grade C, Alack paint
Seamless Pipe A53 Grade C, Hot dipped galvanized		Seamless Pipe SA53 Grade C, Hot dipped galvanized
SMLS Pipe A53 Grade C,Hot dipped galvanized		SMLS Pipe SA53 Gr.C, Hot dipped galvanized
Seamless Pipe A53 Gr.C,Hot dipped galvanized		Seamless Pipe SA53 Gr.C, Hot dipped galvanized
SMLS Pipe A53 Gr.C, Hot dipped galvanized		SMLS Pipe SA53 Grade C, Hot dipped galvanized
Seamless Pipe A53 Grade C, Hot zinc coated		Seamless Pipe SA53 Grade C, Hot zinc coated
SMLS Pipe A53 Grade C,Hot zinc coated		SMLS Pipe SA53 Gr.C, Hot zinc coated
Seamless Pipe A53 Gr.C,Hot zinc coated		Seamless Pipe SA53 Gr.C, Hot zinc coated
SMLS Pipe A53 Gr.C, Hot zinc coated		SMLS Pipe SA53 Grade C, Hot zinc coated
Seamless Pipe A53 Grade C, zinc coated		Seamless Pipe SA53 Grade C, zinc coated
SMLS Pipe A53 Grade C,zinc coated		SMLS Pipe SA53 Gr.C, zinc coated
Seamless Pipe A53 Gr.C,zinc coated		Seamless Pipe SA53 Gr.C, zinc coated
SMLS Pipe A53 Gr.C, zinc coated		SMLS Pipe SA53 Grade C, zinc coated
Seamless Pipe A53 Grade C, Galvanized		Seamless Pipe SA53 Grade C, Galvanized
SMLS Pipe A53 Grade C,Galvanized		SMLS Pipe SA53 Gr.C, Galvanized
Seamless Pipe A53 Gr.C,Galvanized		Seamless Pipe SA53 Gr.C, Galvanized
SMLS Pipe A53 Gr.C, Galvanized		SMLS Pipe SA53 Grade C, Galvanized
Seamless Pipe A53 Grade C, zinc Coating		Seamless Pipe SA53 Grade C, zinc Coating
SMLS Pipe A53 Grade C,zinc Coating		SMLS Pipe SA53 Gr.C, zinc Coating
Seamless Pipe A53 Gr.C,zinc Coating		Seamless Pipe SA53 Gr.C, zinc Coating
SMLS Pipe A53 Gr.C, zinc Coating		SMLS Pipe SA53 Grade C, zinc Coating
Seamless Pipe A53 Grade C, pickled oiled		Seamless Pipe SA53 Grade C, pickled oiled
SMLS Pipe A53 Grade C,pickled oiled		SMLS Pipe SA53 Gr.C, pickled oiled
Seamless Pipe A53 Gr.C,pickled oiled		Seamless Pipe SA53 Gr.C, pickled oiled
SMLS Pipe A53 Gr.C, pickled oiled		SMLS Pipe SA53 Grade C, pickled oiled
Seamless Tube A53 Grade C	Seamless Tube SA53 Grade C	Seamless Tube A53 Gr.C	Seamless Tube SA53 Gr.C
SMLS Tube A53 Grade C	SMLS Tube SA53 Gr.C	SMLS Tube A53 Gr.C	SMLS Tube SA53 Grade C
Seamless Tube A53 Grade C, Alack paint		Seamless Tube SA53 Grade C, Alack paint
SMLS Tube A53 Grade C, Alack paint		SMLS Tube SA53 Gr.C , Alack paint
Seamless Tube A53 Gr.C, Alack paint		Seamless Tube SA53 Gr.C, Alack paint
SMLS Tube A53 Gr.C, Alack paint		SMLS Tube SA53 Grade C, Alack paint
Seamless Tube A53 Grade C, Hot dipped galvanized		Seamless Tube SA53 Grade C, Hot dipped galvanized
SMLS Tube A53 Grade C,Hot dipped galvanized		SMLS Tube SA53 Gr.C, Hot dipped galvanized
Seamless Tube A53 Gr.C,Hot dipped galvanized		Seamless Tube SA53 Gr.C, Hot dipped galvanized
SMLS Tube A53 Gr.C, Hot dipped galvanized		SMLS Tube SA53 Grade C, Hot dipped galvanized
Seamless Tube A53 Grade C, Hot zinc coated		Seamless Tube SA53 Grade C, Hot zinc coated
SMLS Tube A53 Grade C,Hot zinc coated		SMLS Tube SA53 Gr.C, Hot zinc coated
Seamless Tube A53 Gr.C,Hot zinc coated		Seamless Tube SA53 Gr.C, Hot zinc coated
SMLS Tube A53 Gr.C, Hot zinc coated		SMLS Tube SA53 Grade C, Hot zinc coated
Seamless Tube A53 Grade C, zinc coated		Seamless Tube SA53 Grade C, zinc coated
SMLS Tube A53 Grade C,zinc coated		SMLS Tube SA53 Gr.C, zinc coated
Seamless Tube A53 Gr.C,zinc coated		Seamless Tube SA53 Gr.C, zinc coated
SMLS Tube A53 Gr.C, zinc coated		SMLS Tube SA53 Grade C, zinc coated
Seamless Tube A53 Grade C, Galvanized		Seamless Tube SA53 Grade C, Galvanized
SMLS Tube A53 Grade C,Galvanized		SMLS Tube SA53 Gr.C, Galvanized
Seamless Tube A53 Gr.C,Galvanized		Seamless Tube SA53 Gr.C, Galvanized
SMLS Tube A53 Gr.C, Galvanized		SMLS Tube SA53 Grade C, Galvanized
Seamless Tube A53 Grade C, zinc Coating		Seamless Tube SA53 Grade C, zinc Coating
SMLS Tube A53 Grade C,zinc Coating		SMLS Tube SA53 Gr.C, zinc Coating
Seamless Tube A53 Gr.C,zinc Coating		Seamless Tube SA53 Gr.C, zinc Coating
SMLS Tube A53 Gr.C, zinc Coating		SMLS Tube SA53 Grade C, zinc Coating
Seamless Tube A53 Grade C, pickled oiled		Seamless Tube SA53 Grade C, pickled oiled
SMLS Tube A53 Grade C,pickled oiled		SMLS Tube SA53 Gr.C, pickled oiled
Seamless Tube A53 Gr.C,pickled oiled		Seamless Tube SA53 Gr.C, pickled oiled
SMLS Tube A53 Gr.C, pickled oiled		SMLS Tube SA53 Grade C, pickled oiled
Pipe A53 Gr.C-W	Pipe A53 Gr.C-ERW	Pipe A53 Gr.C-WX	Pipe A53 Gr.C-WU
Pipe A53 Gr.C-S
Class	Construction	Non-destructive Examination
ERW	Welded	None
W	Welded	Radiography or Ultrasonic
WX	Welded	Radiography
WU	Welded	Welded Ultrasonic
Pipes		Tubes
Seamless Pipe		Seamless Tube
SMLS - Pipe		SMLS - Tube
Electric resistance welding - Pipes		Electric resistance welding - Tube
ERW - Pipes		ERW - Tube
Seamless and Electric-Resistance-Welded - Pipe		Electric-Resistance-Welded Pipe and Tube
SMLS and Electric-Resistance-Welded - Pipe
Double Submerged Arc Welded Pipe		Double Submerged Arc Welded - Tube
DSAW - Pipe		DSAW - Tubes
Spiral Welded Pipes		Spiral Welded Tube
Spiral Submerged Arc Welded Pipes		Spiral Submerged Arc Welded Tube
SAW - Pipe		SAW - Tube
Spiral Sub-Merged Arc Welded Pipe		Spiral Sub-Merged Arc Welded Tube
SSAW - Pipe		SSAW -Tube
High Frequency Induction Welded Pipe		High Frequency Induction Welded Tube
HFI Welded - Pipe		HFI Welded - Tube
Electric Fusion Welded Pipes		Electric Fusion Welded Tube
EFW Welded - Pipe		EFW Welded - Tube
Longitudinally Submerged Arc Welded Pipe		Longitudinally Submerged Arc Welded Tube
LSAW - Pipe		LSAW - Tube
Uing and Oing forming Pipe		Uing and Oing forming Tube
UOE - Pipe		UOE - Tube
JCOE - Pipe		JCOE - Tube
J-ing - Pipe		J-ing - Tube
C-ing and O-ing - Pipe		C-ing and O-ing - tube
Anti-corrosion steel pipe		Anti-corrosion steel Tube
Oval pipe		Oval Tube
Square hollow section		Rectangular Hollow Sections
Hot dip galvanized square tube		Stainless Steel Square / Rectangular Tubes
Materials : Pipes and Tubes Seel - ASTM
Carbon Steel
ASTM		ASME
A53 Gr. A	A53 Grade A	SA53 Gr. A	SA53 Grade A
A53 Gr. B	A53 Grade B	SA53 Gr. B	SA53 Grade B
ASTM A53 PIPE TYPES
Type F—Furnace-butt-welded, continuous welded Grade A		Type S—Seamless, Grades A and B	Type E—Electric-resistance-welded, Grades A and B,
Pressure Rating : Pipes and Tubes Seel - ASTM
Schedule
SCH5	SCH10	SCH30	SCH STD
SCH40	SCH60	SCHXS	SCH80
SCH100	SCH100	SCH120	SCH140
SCH160	SCH XXS	Schedule 160	Schedule XXS
Schedule 5	Schedule 10	Schedule 20	Schedule 30
Schedule STD	Schedule 40	Schedule 60	Schedule XS
Schedule 80	Schedule 100	Schedule 120	Schedule 140
Schedule 160	Schedule XXS
Pressure Rating : Pipes and Tubes, Stainless Steel
SCH 5S	SCH 10S	SCH 30S	SCH STD
SCH 10S	SCH 60S	SCH XS	SCH 80S
SCH 100S	SCH 120S	SCH 140S	SCH 160S
SCH XXS	Schedule 160S	Schedule XXS
Schedule 5S	Schedule 10S	Schedule 20S	Schedule 30S
Schedule STD	Schedule 40	Schedule 60S	Schedule XS
Schedule 80S	Schedule 100S	Schedule 120S	Schedule 140S
Schedule 160S	Schedule XXS
Surface Coatings
Fusion-Bonded Epoxy Coating (FBE)	Coal Tar Epoxy (CTE)	Epoxy	polyurethane
chlorinated	Rubber Lined	polyvinyl chloride	Polyurethane (PUR)
Three-Layer PE	Three-Layer 3LPE	Three-Layer 3LPP	Three-Layer PP
FBE coatings	3LPO coating	2LPO coating	Fusion bonded epoxy
Composite Coatings	3 Layer PP/PE Coating	External Liquid Coating	PE Coating
PP Coating	Polyethylene (PE)	Polypropylene (PP)	liquid epoxy, polyurethane
(PU), or e.g. (UV-curable) laquer	Internal Liquid Lining polyurethane (PU		Cement Mortar Lining
Internal FBE Lining Fusion Bonded Epoxy (FBE)		3 Layer PP/PE Coating	3LPE/PP-coated pipes
FBE or 3LPE/PP coated pipes	polyurethane (PUF)	Multi-layer coating with polypropylene (PP)
black paint	Galvanized	pickled oiled	zinc coated
Hot zinc coated	Hot dipped galvanized	Polyethylene (PE)	pipeline coatings. PE
High-Density Polypropylene	single and multi-layer FBE	multi-layer polypropylene	multi-layer polyethylene
polyurethane, and coating	fusion-bonded epoxy (FBE)	polyethylene (3LPE)	liquid coatings (paints)
phosphate or chromate pre-treatment. The FBE coating			Epoxy and High Build Epoxy
polyurethane or epoxy coatings. Codes of practice
Lined : Tubes - Pipe
Rubber-Lined	PTFE -Lined	polyurethane - Lined
Hot dip galvanized	Mạ kẽm nhúng nóng	Galvanized	ECTFE Coatings
PTFE Coating	PFA Coating	FEP Coating	ECTFE Lining
PTFE Lining	PTFE Polytetrafluoroethylene (PTFE)	PFA Lining	FEP Lining
PVDF Lining	PTFE MS Lined Pipes and Fittings	Black Coated	FBE Fusion Bonded Epoxy
FBE External Tape	FBE Internal Coating	2 Layer FBE + Rough Coating	Double Layer FBE
Dual Coat FBE Capabilities	Fusion Bonded Epoxy (FBE) Coating	Ceramic Epoxy Lining	Superior External Coating For Fittings
Fusion Bond Epoxy Coatings	3PE Epoxy coating	Fusion Bond Epoxy (FBE)	Ceramic Epoxy
PROTECTIVE FUSION	CERAMIC EPOXY LINED	3LPE THREE-LAYER POLYETHYLENE	3LPP THREE-LAYER
BONDED EPOXY (FBE)			POLYPROPYLENE
Ceramic-Lined Pipe and Fittings	Epoxy powder coating	polyethylene-lined	polyethylene lining
Small-Diameter Single-Layer Bonded Polyethylene-Coated		PLP-P1H (Single-Layer Bonded Polyethylene-Coated)
PLP-P2S (Polyethylene-Coated)		JDLP (PVC-Lined Steel)	Plastic-Lined
PFA Lining	Epoxy coating	Coating FBE epoxy powder coating	Epoxy PE Coating
with epoxy liquid coating meeting	Fusion Bond Epoxy Coated	Epoxy color coated	Polyethylene Coated
Hot-dipped Galvanized or Epoxy Coating		Plastic PE Coated	PP Lined Pipe
Fusion Bonded Epoxy (FBE) Coating	Fusion Powder Coating	Zinc Coatings	Polypropylene Lined Pipe
Polyvinylidene Fluoride Lined Pipe	PVDF Lined Pipe	PFA Lined Pipe	Ceramic Lined
Rubber Lined Pipe	Rubber Lined Pipe Surface Epoxy Resin Painted		Rubber Lined Pipe Mining Slurry Rubber Lined Pipeline
Wear Rubber Lined Pipe	SBR Rubber Lined Pipe Piping Pipeline	Rubber Lined Pipe Mining Slurry Rubber Lined Pipe Pipeline
Anti Corrosive Rubber Lined Pipe Piping Pipeline		Abrasive Rubber Lined Pipe Piping Pipeline	Acid Resistant Rubber Lined Pipe Piping Pipeline
Rubber Lined Seamless Steel Tube Pipe Piping Pipeline		Salt Resistant Rubber Lined Pipe Piping Pipeline
Natural vulcanized Rubber Lined Pipe Tube Pipeline		Heat Vulcanized Rubber Lined Pipe	Polyurethane Lined Steel Pipe
Rubber Lined Pipeline Mining Slurry Wear Resistant Rubber Lined Pipe		Polyurethane Lined Pipe & Urethane Lined	Polyurethane Pipe Fitting Poly Urethane Pipe Fitting
Type end : Plain Ends / Beveled Ends: Tubes - Pipe
• Bevel End (BE) • Bevel Both Ends (BBE) • Bevel Large End (BLE) • Bevel One End (BOE) • Bevel Small End (BSE) • Bevel for Welding (BFW) • Buttweld End (BE)	• End of Pipe (EOP) • Flange One End (FOE) • Plain End (PE) • Plain Both Ends (PBE) • Plain One End (POE) • Thread End (TE) • Thread Both Ends (TBE)	• Thread Large End (TLE) • Thread One End (TOE) • Thread Small End (TSE) • Threads Only (TO) • Threads per Inch (TPI)
Standard : Pipes and Tubes Seel - ASTM A
ASME : B36.10M	ANSI B36.10M	ASME : B36.19M	ANSI : B36.19M

Surface Coatings
3 Layer PP/PE Coating In addition to an anti-corrosion layer of FBE coating, mechanical protection can be added by applying a layer of Polyethylene (PE) or Polypropylene (PP). An adhesive layer takes care of the bonding between the FBE and PE/PP layer. Granules of PE/PP are extruded onto the passing pipe, forming a solid coating layer. Side extrusion is most commonly used, where a sheet of PE/PP is wrapped around a pipe. For smaller diameter pipes, so-called sleeve/ring extrusion is a common process.
External Liquid Coating With external liquid coating, coating is applied to the outside pipe surface by a spraying system, providing corrosion protection for the pipe surfaces. There are multiple coating types available e.g. liquid epoxy, polyurethane (PU), or e.g. (UV-curable) laquer.
Internal Liquid Lining Internal liquid lining is a coating layer on an internal pipe surface to protect against corrosion or to optimize flow efficiency. There are multiple coating types available such as liquid epoxy, polyurethane (PU), or 2-component coating. After placing the pipe in the internal liquid coating station, the pipe ends are sealed off and a lance with the spraying gun system is moved through the pipe. Pre-heating could be an option for internal liquid coating.
nternal FBE Lining An internal FBE coating is used to protect the inner surfaces of steel pipes from the influence of corrosion and light mechanical impacts and it provides excellent resistance to cathodic disbondment. The internal Fusion Bonded Epoxy (FBE) system is based on an epoxy powder spray system, mounted on a lance. The lance moves through the pipe while the epoxy powder is sprayed onto the internal pipe surface. The pipe must be heated so that the epoxy powder melts onto the pipe. After FBE application, the layer requires curing.
Cement Mortar Lining Cement Mortar Lining (CML) is a method for applying a mixture of sand, cement and water onto internal pipe surfaces using a centrifugal spinning or pooring method. A smooth and compact layer of cement mortar protects water pipes against corrosion and abrasion. A characteristic of CML is that blasting the pipe surfaces is not necessarily required prior to the CML application. Selmers has solutions for factory applied and in-situ applied CML.
Concrete Weight Coating During the concrete weight coating process, concrete is applied onto the pipe. The concrete layer adds additional weight to pipes to compensate the buoyancy of submarine pipelines, and it also provides protection from external influences. Impingement: 3LPE/PP-coated pipes with weld cage or wire mesh reinforcement. Concrete is sprayed at the pipe by high speed application drums. Compression: FBE or 3LPE/PP coated pipes with concrete wrapped around the pipe along with wire mesh reinforcement.
PU Foam Coating To keep substances in a pipeline at the correct temperature, polyurethane foam (PUF) insulation coating is commonly used for hot oil transmission lines as well as in district heating and cooling. Pipe-in-pipe application consists of an inner pipe and an outer jacket; the space between them is filled with PUF. Another manner for applying PUF is spraying PUF onto a rotating pipe, with an optional extra mechanical protection layer.
PP Foam Coating Multi-layer coating with polypropylene (PP) foam providing high thermal insulation; this is used for deepwater pipeline projects. In some cases glass synthetic PP (PP enforced with glass fibre spheres) is used instead of PP foam. On top of a 3-layer PP coating, various layers of PP foam ensure a pipe gets the insulating characteristics required. Finally, mechanical protection is added with a solid top layer of PP.
Internal FBE Lining An internal FBE coating is used to protect the inner surfaces of steel pipes from the influence of corrosion and light mechanical impacts and it provides excellent resistance to cathodic disbondment. The internal Fusion Bonded Epoxy (FBE) system is based on an epoxy powder spray system, mounted on a lance. The lance moves through the pipe while the epoxy powder is sprayed onto the internal pipe surface. The pipe must be heated so that the epoxy powder melts onto the pipe. After FBE application, the layer requires curing.
Cement Mortar Lining Cement Mortar Lining (CML) is a method for applying a mixture of sand, cement and water onto internal pipe surfaces using a centrifugal spinning or pooring method. A smooth and compact layer of cement mortar protects water pipes against corrosion and abrasion. A characteristic of CML is that blasting the pipe surfaces is not necessarily required prior to the CML application. Selmers has solutions for factory applied and in-situ applied CML.
Concrete Weight Coating During the concrete weight coating process, concrete is applied onto the pipe. The concrete layer adds additional weight to pipes to compensate the buoyancy of submarine pipelines, and it also provides protection from external influences. Impingement: 3LPE/PP-coated pipes with weld cage or wire mesh reinforcement. Concrete is sprayed at the pipe by high speed application drums. Compression: FBE or 3LPE/PP coated pipes with concrete wrapped around the pipe along with wire mesh reinforcement.
PU Foam Coating To keep substances in a pipeline at the correct temperature, polyurethane foam (PUF) insulation coating is commonly used for hot oil transmission lines as well as in district heating and cooling. Pipe-in-pipe application consists of an inner pipe and an outer jacket; the space between them is filled with PUF. Another manner for applying PUF is spraying PUF onto a rotating pipe, with an optional extra mechanical protection layer.

Surface Coatings

3 Layer PP/PE Coating

In addition to an anti-corrosion layer of FBE coating, mechanical protection can be added by applying a layer of Polyethylene (PE) or Polypropylene (PP). An adhesive layer takes care of the bonding between the FBE and PE/PP layer.

Granules of PE/PP are extruded onto the passing pipe, forming a solid coating layer. Side extrusion is most commonly used, where a sheet of PE/PP is wrapped around a pipe. For smaller diameter pipes, so-called sleeve/ring extrusion is a common process.

External Liquid Coating

With external liquid coating, coating is applied to the outside pipe surface by a spraying system, providing corrosion protection for the pipe surfaces.

There are multiple coating types available e.g. liquid epoxy, polyurethane (PU), or e.g. (UV-curable) laquer.

Internal Liquid Lining

Internal liquid lining is a coating layer on an internal pipe surface to protect against corrosion or to optimize flow efficiency. There are multiple coating types available such as liquid epoxy, polyurethane (PU), or 2-component coating.

After placing the pipe in the internal liquid coating station, the pipe ends are sealed off and a lance with the spraying gun system is moved through the pipe. Pre-heating could be an option for internal liquid coating.

Internal FBE Lining

An internal FBE coating is used to protect the inner surfaces of steel pipes from the influence of corrosion and light mechanical impacts and it provides excellent resistance to cathodic disbondment.

The internal Fusion Bonded Epoxy (FBE) system is based on an epoxy powder spray system, mounted on a lance. The lance moves through the pipe while the epoxy powder is sprayed onto the internal pipe surface. The pipe must be heated so that the epoxy powder melts onto the pipe. After FBE application, the layer requires curing.

Cement Mortar Lining

Cement Mortar Lining (CML) is a method for applying a mixture of sand, cement and water onto internal pipe surfaces using a centrifugal spinning or pooring method. A smooth and compact layer of cement mortar protects water pipes against corrosion and abrasion.

A characteristic of CML is that blasting the pipe surfaces is not necessarily required prior to the CML application. Selmers has solutions for factory applied and in-situ applied CML.

Concrete Weight Coating

During the concrete weight coating process, concrete is applied onto the pipe. The concrete layer adds additional weight to pipes to compensate the buoyancy of submarine pipelines, and it also provides protection from external influences.

Impingement: 3LPE/PP-coated pipes with weld cage or wire mesh reinforcement. Concrete is sprayed at the pipe by high speed application drums.

Compression: FBE or 3LPE/PP coated pipes with concrete wrapped around the pipe along with wire mesh reinforcement.

PU Foam Coating

To keep substances in a pipeline at the correct temperature, polyurethane foam (PUF) insulation coating is commonly used for hot oil transmission lines as well as in district heating and cooling.

Pipe-in-pipe application consists of an inner pipe and an outer jacket; the space between them is filled with PUF. Another manner for applying PUF is spraying PUF onto a rotating pipe, with an optional extra mechanical protection layer.

PP Foam Coating

Multi-layer coating with polypropylene (PP) foam providing high thermal insulation; this is used for deepwater pipeline projects. In some cases glass synthetic PP (PP enforced with glass fibre spheres) is used instead of PP foam.

On top of a 3-layer PP coating, various layers of PP foam ensure a pipe gets the insulating characteristics required. Finally, mechanical protection is added with a solid top layer of PP.